<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>圆角边框和阴影</title>
		<style type="text/css">
			div{
				width: 200px;
				height: 200px;
				border: 2px solid red;
   				border-radius: 50%;
   				background-color: blue;
   				box-shadow: -6px -6px 4px black;
			}
		</style>
	</head>
	<body>
		<div>
			
		</div>
	</body>
</html>
